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An ideal data dictionary should have everything a DBA wants to know about the database. 1 Conceptual, External, and internal database descriptions. 2. Descriptions of attr
Explain nested relations? Nested relations The assumption of INF is a natural one in the bank examples we have considered. However, not all applications are best modelled
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
Problem 1. Write the SQL queries using Data Manipulation Language (DML) statements. Insert values into student table with field names using insert command Display the
I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
why are older data models are being replaced by new data models
give some example real life situation where DBMS are most suitable
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
Explain the disadvantages of creating a temporary table? If you have already created a temporary table with a shown name and attempting to create a second one with that nam
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